Nice representation. I've heard that Sivatherium Maurusium survived until very recent (to 8000 BC), as it appears in rock paintings in the Sahara. I might make a fantasy illustration of a Sivatherium rider. This drawing serves as a reference for the anatomical study.

I love these ancient giraffids. Thanks for posting them.Something is weird with the perspective on the horns of this one, though. The distant one looks like it is angled differently from the close one.